Bought it earlier in the week to try out and fell in love with it once I got it dialed into my basses and amp (Ampeg RB115 with SWR 1x15 cab), I have always had issues with my low b string on my 5 string bass sounding not very good but with gain boost off it seems to tighten up that low b string, as for my sadowsky it tightens that up too, only time I use gain boost to add more low end is with my solar AB2.4AN as that is a pretty bright sounding bass. I play in a sepultura cover band and this pedal seemed to fit right in with the rest of the band and it is a nice alternative to the more expensive darkglass pedals as a B3K is a $450 pedal here in NZ.